Does Canada do anything other than burn lately?

I think I just had one of the most miserable days I’ve ever had in Minnesota yesterday. Somewhere close to what that nearly 100 degree day at the State Fair was a few years back. I felt like I was melting from the heat and humidity, and the air sucked so bad just stepping outside hurt. I have a profound dislike of dirty air like that. The air should not stink. The air should not have colors in it. Air should be clear and clean. This… air coming down from Canada is none of these things, and I do not like it.